The Duino Leonardo module is a certified rhomb.io Module that contains an ATmega32U4 microcontroller, the IC in which the popular Arduino/Genuino Leonardo board is based. This IC is a low-power CMOS 8-bit microcontroller based on RISC architecture. The module allows to program the microcontroller by using the Arduino IDE as it were a genuine Arduino/Genuino Leonardo board.
Duino Leonardo
26,27€
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Out of stock
The Duino Leonardo module is a certified Rhomb.io Module that contains an ATmega32U4 microcontroller, the IC in which the popular Arduino/Genuino Leonardo board is based. This IC is a low-power CMOS 8-bit microcontroller based on RISC architecture.
The module allows to program the microcontroller by using the Arduino IDE as it were a genuine Arduino/Genuino Leonardo board. This gives to the user the capability to export easily a project originally made for the Arduino platform and transform it in a modular, tiny, and powerful professional product.
The Duino Leonardo module can work as a typical Rhomb.io Slave Module, or as a Master Module when is used with any Rhomb.io PCB Class 2.
Applications:
- Industrial automation
- Internet of Things
- Human Interface Device
Specifications
| Microcontroller | Microchip ATmega32u4, 8-bit AVR, 16 MHz, 32 KHz |
| Internal Memory | 32 KB Flash, 1 KB EEPROM, 2.5 KB SRAM |
| Encryption Memory | 16 Keys/ECDSA/ECDH/SHA-256/SMAC/NIST |
| ID Memory | 64-bit Unique-ID Memory with 112 B User EEPROM |
| Connectivity | Arduino IDE compatible; Native USB |
| rhomb.io config. | USB / 1xUART / SPI, I2C / 2xINT / PWM / 11xGPIO / 5xAD /12xGPIO |
| MCU I/O | 26xI/O (7xPWM / 12xADC / 5xINT / PWM / 11xGPIO / 5xAD) |
| Op. Voltage | 2.8 V / 3.3 V / 5 V |
| Op. Temperature | -40 ºC to +85 ºC |
Documentation
3D View
Module specification
Key features
As it has been mentioned above, the Duino Leonardo module contains an ATmega32U4 microcontroller. This 8-bit RISC machine has 26 digital input/output pins (12 of them can be used as 8-bit PWM outputs), 6 analog inputs, 1 UART and a 16 MHz quartz crystal.
The module is ready to use with the Arduino IDE. That is possible because a bootloader has been installed on the ATmega32U4 and the module includes also a USB port. Then, the user only has to plug the Duino Leonardo module on the master socket that will be found on the Rhomb.io Class 2 PCB and connect the USB to a computer.
The following figure identifies the main Integrated Circuits (IC) onboard.
The next figure shows the Block Diagram for the Duino Leonardo module.
| Microcontroller | Microchip ATmega32u4, 8-bit AVR, 16 MHz, 32 KHz |
| Internal Memory | 32 KB Flash, 1 KB EEPROM, 2.5 KB SRAM |
| Encryption Memory | 16 Keys/ECDSA/ECDH/SHA-256/SMAC/NIST |
| ID Memory | 64-bit Unique-ID Memory with 112 B User EEPROM |
| Connectivity | Arduino IDE compatible; Native USB |
| rhomb.io config. | USB / 1xUART / SPI, I2C / 2xINT / PWM / 11xGPIO / 5xAD /12xGPIO |
| MCU I/O | 26xI/O (7xPWM / 12xADC / 5xINT / PWM / 11xGPIO / 5xAD) |
| Op. Voltage | 2.8 V / 3.3 V / 5 V |
| Op. Temperature | -40 ºC to +85 ºC |
Connections
The following table indicates the available signals on the Rhomb.io Standard and which of them are in use. The table also shows the nomenclature used on the Rhomb.io Standard and its corresponding on Arduino platform.
| J102 connector | |||||
|---|---|---|---|---|---|
| Pin | Rhomb.io signal | MCU Port | Arduino Pin | Arduino IDE | |
| 1 | GND | GND | GND | – | |
| 2 | – | – | – | – | |
| 3 | – | – | – | – | |
| 4 | – | – | – | – | |
| 5 | – | – | – | – | |
| 6 | – | – | – | – | |
| 7 | – | – | – | – | |
| 8 | – | – | – | – | |
| 9 | GND | GND | GND | – | |
| 10 | – | – | – | – | |
| 11 | – | – | – | – | |
| 12 | – | – | – | – | |
| 13 | – | – | – | – | |
| 14 | – | – | – | – | |
| 15 | – | – | – | – | |
| 16 | – | – | – | – | |
| 17 | GND | GND | GND | – | |
| 18 | – | – | – | – | |
| 19 | – | – | – | – | |
| 20 | GND | GND | GND | – | |
| 21 | CAN-A_RX | PF4 (ADC4/TCK) | A3 | 17/A3 | |
| 22 | CAN-A_TX | PF1 (ADC1) | A4 | 18/A4 | |
| 23 | – | – | – | – | |
| 24 | – | – | – | – | |
| 25 | – | – | – | – | |
| 26 | RESET_OUT | PF6 (ADC6/TDO) | A1 | 15/A1 | |
| 27 | GND | GND | GND | – | |
| 28 | INT0 | PB0 (SS/PCINT0) | – | – | |
| 29 | SPI-A_CS0 | PB6 (PCINT6/OC1B/OC4B/ADC13) | 10 | 10/A10 | |
| 30 | SPI-A_CLK | PB1 (PCINT1/SCLK) | SCK | – | |
| 31 | SPI-A_MOSI | PB2 (PDI/PCINT2/MOSI) | MOSI | – | |
| 32 | SPI-A_MISO | PB3 (PDO/PCINT3/MISO) | MISO | – | |
| 33 | GND | GND | GND | – | |
| 34 | #NMI | PE2 (#HWB) | – | – | |
| 35 | I2C-A_SCL | PD0 (OC0B/SCL/INT0) | 3 | 3 | |
| 36 | I2C-A_SDA | PD1 (SDA/INT1) | 2 | 2 | |
| 37 | GND | GND | GND | – | |
| 38 | – | – | – | – | |
| 39 | – | – | – | – | |
| 40 | GND | GND | GND | – | |
| 41 | USB_P | D+ | – | – | |
| 42 | USB_N | D- | – | – | |
| 43 | GND | GND | GND | – | |
| 44 | – | – | – | – | |
| 45 | – | – | – | – | |
| 46 | – | – | – | – | |
| 47 | – | – | – | – | |
| 48 | – | – | – | – | |
| 49 | – | – | – | – | |
| 50 | GND | GND | GND | – | |
| J101 connector | |||||
| Pin | Rhomb.io signal | MCU Port | Arduino Pin | Arduino IDE | |
| 1 | GND | GND | GND | – | |
| 2 | – | – | – | – | |
| 3 | IO0 | PD4 (ICP1/ADC8) | 4 | 4/A6 | |
| 4 | IO1 | PC6 (OC3A/OC4A) | 5 | 5 | |
| 5 | IO2 | PD7 (T0/OC4D/ADC10) | 6 | 6/A7 | |
| 6 | IO3 | PE6 (IN6/AIN0) | 7 | 7 | |
| 7 | IO4 | PB4 (PCINT4/ADC11) | 8 | 8/A8 | |
| 8 | IO5 | PB7 (PCINT7/OC0A/OC1C/#RTS) | 11 | 11 | |
| 9 | IO6 | PD6 (T1/#OC4D/ADC9) | 12 | 12/A11 | |
| 10 | IO7 | PC7 (ICP3/CLK0/#OC4A) | 13 | 13 | |
| 11 | – | – | – | – | |
| 12 | GND | GND | GND | – | |
| 13 | – | – | – | – | |
| 14 | UART-A_RXD | PD2 (RXD1/INT2) | 0 | 0 | |
| 15 | UART-A_TXD | PD3 (TXD1/INT3) | 1 | 1 | |
| 16 | – | – | – | – | |
| 17 | GND | GND | GND | – | |
| 18 | AD0 | PF0 (ADC0) | A0 | 14/A0 | |
| 19 | GND | GND | GND | – | |
| 20 | PWM0 | PB5 (PCINT5/OC1A/#OC4B/ADC12) | 9 | 9/A9 | |
| 21 | CAPT0 | PF7 (ADC7/TDI) | A0 | 14/A0 | |
| 22 | CAPT1 | PF5 (ADC5/TMS) | A2 | 16/A2 | |
| 23 | VSYS | DVCC | 5V, IOREF | – | |
| 24 | – | ||||
| 25 | – | ||||
| 26 | #RESET_IN | #RESET | RESET | – | |
| 27 | – | – | – | – | |
| 28 | – | – | – | – | |
| 29 | RST | – | – | – | |
| 30 | GND | GND | GND | – | |
| 31 | 3V3 | VCC | 3V3, IOREF | – | |
| 32 | – | ||||
| 33 | GND | GND | GND | – | |
| 34 | – | ||||
| 35 | 2V8 | VCC | IOREF | – | |
| 36 | – | ||||
| 37 | GND | GND | GND | – | |
| 38 | – | ||||
| 39 | – | – | – | – | |
| 40 | – | – | – | – | |
| 41 | – | – | – | – | |
| 42 | – | – | – | – | |
| 43 | GND | GND | GND | – | |
| 44 | – | – | – | – | |
| 45 | GND | GND | GND | – | |
| 46 | – | – | – | – | |
| 47 | DVCC (VIO_OUT) | DVCC | 5V, IOREF | – | |
| 48 | 1WIRE | PD5 (XCK1/#CTS) | A1 | 15/A1 | |
| 49 | – | – | – | – | |
| 50 | GND | GND | GND | – | |
In Duino Leonardo Master Module, the user can choose wether this master module is supplied by a 2.8V, 3.3V or a VSYS source simply by closing or opening the solder jumpers at the bottom-right corner of the module. It is the voltage at which the whole module is powered. 2.8V level recommenden for power efficient applications. If VSYS source is selected, “1WIRE PROTECT” solder jumper must be closed in order to protect all 1-wire EEPROM connected to 1-wire bus, otherwise they will be damaged.
VIO_OUT is a power output pin that sets the voltage level for slave modules to this master module. VIO_OUT level is the same as DVDD.
RESET_OUT is a GPIO assigned to output reset signal to any slave modules interfaced to this master module.
There is a LED controlled by PWM0 output pin for whatever the user might need, debugging, visual validation, etc.
1-Wire is an interface to read information from the on-module EEPROM memory.
Warranty
- Precaution against Electrostatic Discharge. When handling Rhomb.io products, ensure that the environment is protected against static electricity. Follow the next recommendations:
- The users should wear anti-static clothing and use earth band when manipulating the device.
- All objects that come in direct contact with devices should be made of materials that do not produce static electricity that would cause damage.
- Equipment and work table must be earthed.
- Ionizer is recommended to remove electron charge.
- Contamination. Be sure to use semiconductor products in the environment that may not be exposed to dust or dirt adhesion.
- Temperature/Humidity. Semiconductor devices are sensitive to environment temperature and humidity. High temperature or humidity may deteriorate semiconductor devices characteristics. Therefore avoid storage or usage in such conditions.
- Mechanical Shock. Care should be exercised not to apply excessive mechanical shock or force on the connectors and semiconductors devices.
- Chemical. Do not expose semiconductor device to chemical because reaction to chemical may cause deterioration of device characteristics.
- Light Protection. In case of non-EMC (Epoxy Molding Compound) package, do not expose semiconductor IC to strong light. It may cause devices malfunction. Some special products which utilize the light or have security function are excepted from this specification.
- Radioactive, Cosmic and X-ray. Semiconductor devices can be influenced by radioactive, cosmic ray or X-ray. Radioactive, cosmic and X-ray may cause soft error during device operation. Therefore semiconductor devices must be shielded under environment that may be exposed to radioactive, cosmic ray or X-ray.
- EMS (Electromagnetic Susceptibility). Note that semiconductor devices characteristics may be affected by strong electromagnetic waves or magnetic field during operation.
Disclaimer
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